'Winnowed' in the Bible

O you my threshed and winnowed ones [my own people the Jews, who must be trodden down by Babylon], that which I have heard from the Lord of hosts, the God of Israel, I have [joyfully] announced to you [Babylon is to fall]!

and who are saying, "When will the New Moon fade so we may sell grain, and the Sabbath conclude so we may market winnowed wheat? shortchanging the measure, raising the price, falsifying the scales by treachery,